Coupling.



PATBNTBD UGT. 6, i903.

Jg R, CARTER. GOUPLING. ABVPLIOATION TILBD MA1?.4 4, 1903.

3 SHEETS-SHEET '1.

' EO MODEL.

PATBNTBD 00T. e, 1.903.

No. 740,527. i

I J. R. CARTER.

' GOUPLING.

APPLIGATION rum nu. 4. 1903.

a sums-amm s.

l l lturney UNITED' STAT-ns Patented october e, isos.

PATENT OFFICE.

JOHN R. CARTER, F AUGUSTA, KENTUCKY, ASSIGNOR TO ERNST H.

- HUENEFELD, 0F CINCINNATI, OHIO.

cO-UPLIN.

SPECIFICATION part of Letters Patent N o. 740,527, dated October 6,1903.

Application iilsd March 4,1903. Serial No. 146,162. (No model.)

i such as will enable others skilled in the art to which it appertainsto make 'and use the same.

My invention relates to an improved coupling, and more particularly toanimproved coupling for pitmen and crank-shafts, an object of theinvention being to provide hookshaped members having cooperating cams,wedges, or enlargements `Which when the members are partially turned-Will force the hooks laterally into locked engagement with thecooperating structure of the crank shaft or journal, and thereby insurethe retention of the hooks on the shaft or journal until they are turnedto a position to bring the cams, wedges, or enlargements adjacent'toeach other,`or, in other words, to a position to bring the outer facesof the hooks nearer together and permit their disengagement with thecoperatin g locking structure of the sh aft or journal.

Withthis object in view the invention consists in certain novel featuresof construction and combinations and arrangements of parts, as will bemore fully hereinafter described, and pointed out in the claims. i

Y In the accompanying drawings, Figure 1 is a perspective viewillustrating the normal operative position of the several parts. Figs. 2and 22am views in elevation, showing the hooks in their position ofassembling or disconnection. Fig. 3 isa view in section. Figs. 4 and 5are views ofthe hooks removed, and Figs. 6, 7, 8, -9, 10, 11, `12, 13,14, 15, 16, 17, 18, and 1Sa are views illustrating modifications.

l represents the crank shaft or jou rn al, and 2 and 3 the hooks to becoupled thereon. The shaft or journal 1 has annular shoulders Ll, spacedapart, and circular heads vor enlargements 5. These hcadsor enlargementsare not at all essential to my invention and are only employed toconform to the diameter of the hooks and make a neat and iiush coupling.

One end of hook 2 is contracted as shown at 6 andthe opposite end ofhook 3 is concontractcd as shown at 7, and the hooks each have `on theirinner faces cams or beveled shoulders 8 at the juncture of theircontracted and wider portions, and the outer faces of both hooksare'made with circular recesses 9 to receive the annular shoulders 4 ofthe shaft or journal 1.

To assemble the coupling, hook 2 isinserted on shaft land movedlaterally until the annularshoulder 4 at one side is in the recess 9 ofthis hook. Hook 3 is then inserted on shaft l in the position shown inFig. 2, the contracted portions 6 and 7 of the hooks permitting hook 3to `be thusinserted onto shaft 1. In this position it will be seen thatthe cams or beveled shoulders 8 lie adjacent to each other, so that wheneither hook is turned on the shaft the cams or shoulders will'forcehook3 over onto annular shoulder 4 and hold both hooks in their extendedposition to turn on annular shoulders 4t. As the openings between thevmembers of each hook are of only just sufficient size to permit thehooks to be .inserted on shaft 1, when they are on the ann ularshoulders 4, which are of. greater diameter than the shaft, they cannotbe drawn therefrom and the hooks cannot be removed until they are turnedto a position to bring Ythe cams or inclined shoulders 8 adjacent toeach other, with the contracted portions 6 of one hook against theenlarged portion of the other hook,when they can be moved laterl ally QEthe annular shoulders and then removed from shaft l. L

`While my improvements are especially adapted for use onWashing-machines and I have shown the hooks integral with pitmenfor'connecting with the upper and lower rub- 11 in the heads orenlargements 5 when the hooks are forced laterally by these cams 'orshoulders 8.

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In Figs. 8 and 9 I illustrate the hooks provided withoutwardly-projecting lugs or pins 12 to enter the grooves or recesses 11in heads .5, and it is manifest that the heads may have these pins andthe hooks grooved to receive them.

Instead of having abrupt shoulders or cams 8, as above described, Imight construct the hooks as shown in Figs. 10 and 11. In this form ofmy invention the hooks are inclined or tapered, forming long cam-faces13, which coperate to move the hooks laterally into locked engagementwith the shaft.

In Figs. 12 and 13 I illustrate how the hooks can be assembled andinserted together onto the shaft. In this construction the hooks aremade widest throughout one member and narrowed throughout the othermember, with cams or inclined shoulders 14 at their juncture, so thatthe hooks fit together and can beinserted in this position onto theshaft, and when one is turned the cams will move the hooks apart andinto locked engagement with the shaft, or I might, as shown in Figs. 14and 15, dispense altogether with the annular shoulders 4 and provide theheads 5 with inwardly-projecting pins 15, which serve to hold the hookson the shaft when forced thereunder by the lateral movement of the hookscaused by the action of cam-faces 8.

While I have described the hooks as having cam-faces, they may haveabrupt shoulders 16 instead, as shown in Fig. 16, although I prefer toincline the shoulders, which makes easier the coupling operation.

In Figs. 17, 18, and 18a I illustrate only one hook as having a cam orenlargement 17 thereon. The other hook is of the same thicknessthroughout and is moved onto `the shaft with its coperating hook in theposition shown in Fig. 17, and when either hook is turned theenlargement 17 will force them apart and into locked engagement with theshaft.

It will thus be seen that my invention is broadly to the idea ofconstructing the hooks so that when turned out oftheir position ofassembling they will be moved laterally to lock with the shaft, and agreat many other slight changes might be made Without departing from myinvention.

Having fully described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

1. A coupling comprising a journal and two hook-shaped members mountedon the journaland movable ou said journal laterally With respect to eachother, said parts provided with coperating locking means.

2. Acoupling comprisingajournaland two hook-shaped members movablelaterally on the journal, said parts provided with coperating lockingmeans and said hook-shaped members having means for moving themla/terally.

3. A coupling comprising a journal, two hookshaped members movablelaterally thereon, said parts having cooperating locking means, and saidhook-shaped members provided with coacting cams to cause them to movelaterally when said members are turned relatively to each other.

4. A coupling comprising a journal two hook-shaped members to engage thesame, having means for moving them laterally on the journal and saidparts provided with means for locking the members to the journal whensaid members have been moved laterally.

5. A coupling comprising two hook-shaped members, and a shaft orjournal, the hookshaped members having enlargements or cams on theadjacent faces to move them apart when one hook is turned out of itspo-` sition for assembling, and the shaft or journal provided With meansto engage the hooks when moved laterally and lock them on the shaft. j j

6. A coupling comprising two hook-shaped members and a shaft or journalof a diameter just small enough to permit the hooks to be insertedthereon, said hooks having cams or enlargements on the adjacent faces tomove them laterally when one hook-shaped member is turned out of itsposition for assem-l bling, and the shaft provided with annularshoulders to enter grooves or recesses in the outer faces of the hooksto lockI the latter on the shaft.

7. Acoupling, comprising two hook-shaped members, a shaft of just smallenough diameter to receive the hooks, the hook-shaped members providedwith cams or enlargements on the adjacent faces which can be so disposedas to permit the hooks to t closely together when placed on the shaftand which, when one hook is turned out of its position for assemblingwill move the hooks laterally, and said shaft having means to engage thehooks when moved laterally to lock them to the shaft.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JOHN R. CARTER.

Witnesses:

S. W. FOSTER, A. W. BRIGHT. v

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